Introduction

Audience

Engineers integrating or extending Molca Unity products: Molca Core, optional shared UI module, the VR training SDK, or the Digital Twin SDK.

Molca ships more than one Unity repo. See SDKs and repositories for paths (e.g. molca-sdk-vr, molca-sdk-dt) and which sections apply.

Section	Contents
Platforms	Which SDK lives where; what applies to VR vs DT
Architecture	Product-neutral: Core vs Unity; VR / DT / Shared placement
Runtime and settings	MolcaProjectSettings → RuntimeManager → GlobalSettings and subsystems
Compatibility and validation	SDK assumptions, versioning, and doc validation conventions
Troubleshooting	Common runtime/integration failures and first checks
Molca Core	Runtime, DI, events, references, sequences, HTTP, modals, content packages
Shared module	Generic UI, preload, media (often bundled with VR templates)
Molca VR SDK	VR overview: architecture, content hierarchy, setup, scenarios, tour, scoring
Molca DT SDK	DT overview + DT architecture: `_MolcaDT` layout, flows, POI

Product	Path
VR training	Platforms → Architecture → VR overview → VR architecture → Runtime and settings → VR setup → Session flow how-to → ScenarioManager
Digital Twin	Platforms → Architecture → Runtime and settings → DT overview → DT architecture → DT layout
Core-only / library	Runtime and settings → Project settings → RuntimeManager